Another winter has come, and with it comes the familiar ritual: a smoky haze, stinging throat, and an air quality index that dips sharply as the temperature falls. We blame vehicle emissions, construction dust, factory smoke, crop burning, and stagnant cold air that traps pollutants to the ground.
Despite restrictions and time limits imposed by the administration, the city reverberated with the deafening sound of firecrackers well past midnight on Diwali night, defying the law and repeated appeals for restraint.
National capital Delhi and financial hub Mumbai has been reeling under high-levels of air pollution for the past one month. Kolkata is another Indian city in the list of world's most polluted.
